Type-writing machine



No. 623,232. Patented Apr. I8, I899.

w. J. BARRON.

TYPE WRITING MACHINE.

(Application filed Jan. 21, 1899.)

(No Model.) 2 Sheefs-Sheet l.

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No. 623,232. Patented Apr. l8, I899. W. J. BARRON.

TYPE WRITING MACHINE.

(Application filed Jan. 21, 1899.)

(No Model.) I 2 Sheets-Sheefl.

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NlTED K STATES PATENT Eric.

WALTER J. BARRON, OF NEW YORK, N.'Y., ASSIGNOR TO THE DENSMORE TYPEWRITER COMPANY, OF SYRACUSE, NEW YORK.

"TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 623,232, dated April 18, 1899.

Application filed January 21,1899. Serial No. 703,332. (No model.)

To all whom it may cancer/t.-

Be it known that I, WALTER J. BARRON, a citizen of the United States, and a resident of the borough of Brooklyn, in the city of New York, in the county of Kings and State of New York, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.

Mypresentinvention has forits main object to improve that class of ribbon alarm mechanisms set forth in Patent NO. 332,791, granted to Thomas 1. Daniel December 22, 1885.

To this end my invention includes features of construction and combinations of devices hereinafter described, and more particularly pointed out in the appended claims.

The preferred form of the invention is illustrated in the accompanying drawings, forming part of this specification, in which Figure 1 is a side elevation, partly broken away to show certain parts more clearly, of

part of a well-known form of a type-writing machine (Remington No. 6) and showing an audible alarm and means for operating the same when the ribbon has reached a predetermined point or has been unwound to a given extent. Fig. 2 is a perspective View of a slotted bar through the slot of which the ribbon passes. Fig. 3 is a perspective view of a lever and bell-striker shown in Fig. 1. Fig. 4 is a sectional view on the line X X of Fig. 1, looking in the direction of the arrow and showing one ribbon-spool and the alarmoperating mechanism. Fig. 5 is a perspective view of a yoke or frame shown in Figs. 1 and 4. I

The same reference-n umeral will be used to designate the same part in the various figures.

1 indicates a suitable frame for supporting the movable parts of the machine; 2, a keylever; 3, a universal bar; 4, one of the rods connecting the universal bar with a cross-bar on an arm 5, projecting forwardly from the usual rocker-shaft, (not shown;) 6, a rockerarm carrying the dogs 7 of the escapement mechanism; 8, a ratchet-wheel with which tl1edogs coact; 9, a toothed wheel connected with the ratchet-wheel 8 in a known or usual manner, and 10 a rack-bar on the carriage,

(partly shown,) which engages with the toothed wheel 9.

11 indicates a spring-drum which is connected with the carriage by means of a strap 12 and an arm 13.

14 indicates a beveled wheel upon the axis of the spring-drum, 15 a beveled wheel upon a shaft 16 of a ribbon-spool 17, and 18 abeveled gear upon a shaft 18, extending transversely of the machine and adjustable to move the bevel-gear 18 into and out of mesh with the beveled gear 15, all as common in said Remington machine.

19 indicates a ribbon which is secured to the ribbon-spools in the usual manner, as by means of a fabric 20, fast at one end to the spool, anda pin 21, securing the end of the ribbon to the fabric.

The foregoing devices are or may be of usual or known construction and Operation.

In the preferred form of the present invention a U-shaped frame 22 has its upright arms 23 provided each with an enlarged portion 24, and the said portions 24 are provided with slots 25, open at their lower ends. Each arm 23 is provided with a transverse slot 26 for the reception of the ends of a cross-bar 27, the bar being secured in place by upsetting its tenoned ends 28 on the Outside of the arms 23, as will be understood. The bar 27 is provided with a longitudinal slot 29 of a length somewhat greater, than the width of the ribbon 19, and the metal of the bar 27 is re- I moved at one side of said slot, as at 30, in order to facilitate the insertion and removal of the ribbon. The lower cross-bar 31 ofthe frame 22 is provided with an outwardly and downwardly extending arm 32, which is bent back upon itself, as shown, to form a guide, for a purpose presently to be described. The top plate of the frame of the machine is provided with vertically-extending perforations 33, which form guides for the upper ends of the arms 23, and the slotted enlarged portions 24 of the arms are slipped over the shaft 16, as indicated in Fig. 4. The frame 22 is therefore guided by the slots 33 and the shaft 16, so that it may move in a vertical direction only. The slot 29 is sufficiently wide to allow the ribbon to pass freely through it, but is not wide enough to allow the pin 21 to pass through, whence it results that the frame 22 is lifted by the pin 21 and bar 27, when and after the ribbon has unwound from the paying-off spool sufficiently far to cause the pin to be moved to a certain point in a vertical direction away from the spool. A lever 34: is pivoted at 35 to an arm 36, extending ('lOWH' wardly from one of the brackets supporting the shaft 16. The lever 31 is embraced by the U-sh'aped guide or hook above mentioned, and extends rearwardly and somewhatt'oward the center of the machine, where it is provided with an upwardlvextending arm 37 and with a horizontally-ext nding lug or arm 1-58. The arm 37 is normally in a posit ion sin-h that the bar 40 on or forming part of the arm 5 just misses the arm 37 there below when the bar is in its lower position, as during the depression of a keylever. One part of an audible alarm, as a striker 41, is connected by a spring 42 and a screw 43 with the lug- 38, before mentioned, and the other part of said alarm, as the gong44,is attached to a part of the framework 1. The lever 34 is provided near its pivot with a horizontallyextending ear 45, and a light spring 46 is at tached to the car 45, as by means of a screw 47. The free end of the spring 46 rests in the bottom of the Ushaped guide or hook 32 aforesaid, and the tension of the spring is such that the lever Si is held normally so that its arm 37 is in the position hereinbefore described, it being understood, of course, that at such time-the frame is in the position shown in Figs. 1 and 4, or with the tops of the slots 25 resting on theshaft 16.

It is understood, of course, that there is a second ribbon-spool at the other or far side of the machine and that its shaft is provided with a beveled gear similar to gear 15, and that the shaft carrying the beveled gear 18 is provided with a second beveled gear for engagement therewith by the endwise motion of the shaft and that the two beveled gears upon said shaft cannot each be in engagement with the corresponding bevel-wheel at the same time, all as well known and shown in numerous patents to myself and others. It is obvious that the alarm mechanism described may be duplicated at the other side of the machine, so that the alarm maybe given when the ribbon has been unwound to a predetermined extent from the far spool, which is not shown in the drawings. As this ribbon mechanism is so well known, I have not deemed it necessary to show the same at both sides of the machine.

The operation of the foregoing'devices is as follows: -When during the operation of the machine the ribbon. 19 has been unwound from the spool 17, the obstruction or pin 21 will have been moved to the position shown in Fig. 1, at which time there is still some of the fabric wound around the spool 17. During the further operation of the key-levers and the type mechanism the pin 21 will be moved upward and will come in contact with the under side of the bar 27 at the edges of the slot 29. The obstruction being, as above described, of a size too great to pass through the slot 29, the further movement of the ribbon will cause the obstruction to lift the bar 27 and frame 22 from the positions shown in Figs. 1 and 4, and during such lifting movement the hook 32, acting through the spring 46, will lift the lever 3i from the position shown into position such that the vibratory arm or bar will strike the top of the projecting arm 37 with sufficient force to overcome the light resistanceof the spring 46 and so throw the striker ll into contact with the gong 44:, thus sounding the alarm, and the alarm will be sounded at each subsequent stroke upon the key-levers orspace-bar until the frame 22 has been allowed to fall from the position to which the obstruction has moved it. In practice, of course, this would occur when the operator had moved the shaft 18 endwise to reverse the travel of the ribbon and had given a turn or so to the shaft to start the ribbon in the reverse direction, according to the usual habit of type-writer operators in this respect.

In many offices one and the same typewriting machine is used for different classes of work, as writing letters in an ink which will admit of copying in letter-copying books and the like and also of doing work in what is called record ink, or one that will not copy. Commonly in such cases the two ribbons are secured one to one spool and one to the other spool and the free ends of the ribbons are secured together by a pin. It is desirable in such cases when using either rib bon in the machine that the other ribbon shall not be allowed to pass to the printingpoint, and thus produce work in an ink different from what it is desired to use. In such case the ribbon which it is desired not to use will be wound upon its spool and the ribbon which it is desired to use willbe brought across the machine and through the guide 48 and down through the slotted bar 27, and the two ends will be pinned together below such bar. The ribbons of course will be wound upon the spool at said side (as that shown in Fig. 1) until the ribbon in use has been unwound from the far spool (not shown) and the ribbon-drivin g mechanism has been reversed, after which reversal the ribbons will unwind from the spool shown and will wind on the far spool until the pin uniting them lifts the frame 22 and so causes the alarm to be sound ed on the further operation of the machine. The operator will understand from this that the wrong ribbon is passing to the printingpoint and that the travel of the ribbon should be reversed, and will accordingly reverse the action of the ribbon-driving mechanism.

Various changes in details of construction may be made without departing from the spirit of my invention, and which may be used in conjunction with inking-ribbons that are IIO fed automatically transversely during the writing of lines and are moved endwise automatically simultaneously or between times.

lVhat I claim as new, and desire to secure by Letters Patent, is

1. In a type-writing machine, the combination of a ribbon automatically moved endwise, an obstruction on the ribbon, a lifterframe operated by said obstruction, a lever loosely connected with said lifter-frame to be raised thereby, an audible alarm one part of which is carried by said lever and the other part by the fixed framework of the machine, and a vibratory arm or part of the type-writing machine into the path of which said lever is moved by said lifter-frame.

In a type-writing machine, the combination of a ribbon automatically moved endwise, an obstruction on the ribbon, a lifterframe raised by said obstruction during the unwinding of the ribbon, a lever pivoted upon the fixed framework of the machine, a spring connection between the lever and the lifterframe, an audible alarm one part of which is carried by said lever, and a vibratory part of the type-writing machine into the path of which said lever is lifted by said frame and obstruction, and by which the lever and alarm are operated. v

In a type-writing machine, the combination of a ribbon automatically moved endwise, an audible alarm, an obstruction on the ribbon, a movable frame guided on the fixed framework and on the ribbon-spool shaft and adapted to be raised by the said obstruction and provided with a hook at its lower end, a lever pivoted upon the fixed framework and connected with said hook and carrying one part of the said alarm, a spring between said lever and the bottom of said hook for maintaining the lever in a lifted position, and a vibratory part of the type-writing machine into the path of which said lever is moved by said frame and said obstruction whereby the alarm is sounded when the obstruction has moved the said movable frame to a given or predetermined extent.

4. In a type-writing machine, the combination of a ribbon automatically moved endwise, an audible alarm, a lever pivoted in the framework and carrying one part of said alarm, a vibratory arm of the escapement-operating mechanism connected with the universal bar, and means for moving said lever into the path of said vibratory arm when the ribbon has unwound to a predetermined extent or distance.

-5. In a type-writing'machine, the combination of a ribbon automatically moved endwise, an audible alarm, a vibratory arm or part of the escapement-operating mechanism, a lever for'operating said alarm and pivoted in the framework and normally out of the path of said Vibratory arm, an obstruction on the ribbon, and means operated by said obstruction and connected with said lever for moving it into the path of said vibratory arm, whereby the alarm is operated when the obstruction on the ribbon has reached apredetermined or given point.

6. In a type-writing machine, the combination of a longitudinally traveling ribbon, means adapted tobe actuated by the ribbon when the latter needs reversing, a springpressed lever pivoted to the framework of the machine and connected to the means adapted to be actuated by the ribbon, a bell-hammerattached to said lever, a bell fixed on the framework therebelow, and a vibratory arm connected with the escapement mechanism and arranged above said lever and adapted to vibrate the same when the said lever has been caused to move to abnormal position and the ribbon needs reversing.

7. In a type-writing machine, the combination of a longitudinally-traveling ribbon, a U-shaped frame slotted to embrace and slide on a ribbon-spool shaft, a slotted cross-bar at the upper end of same frame, an obstruction on the ribbon adapted to lift said crossbar and frame, a hook on said frame, a lever pivoted on the main frame, a spring on said lever and pressing on said hook, an obstruction on said lever adapted to be struck by a part of the escapement mechanism, a bellhammer on said lever, and a bell therebelow on the framework.

Signed at the borough of Manhattan, in the city of New York, in the county of New York and State of New York, this 16th dayof January, A. D. 1899.

WVALTER J. BARRON.

Witnesses:

GEO. K. GILLULY, GEORGE W. DICKERMAN. 

